Motorola APX 6000 User Manual page 26

If the power-up test is unsuccessful, you see Error
Note:
XX/YY (XX/YY is an alphanumeric code).
Turn off the radio, check the battery, and turn the
radio back on. If the radio fails the power-up test
again, record the Error XX/YY code and contact
your dealer.
Note: If the power-up test is successful, but you see
Hardware board absent or Hw Board Mismatch.
Send the radio to the qualified technician to fix this
error.
If the power-up test is successful, but you see Hw
Board Failed or Man-Down Hw Error, send the radio
to the qualified technician to fix this error.
8
English
To turn off the radio, rotate the On/Off/Volume Control Knob
counterclockwise until you hear a click.